CN201651465U - Reset safety valve - Google Patents
Reset safety valve Download PDFInfo
- Publication number
- CN201651465U CN201651465U CN2009202828590U CN200920282859U CN201651465U CN 201651465 U CN201651465 U CN 201651465U CN 2009202828590 U CN2009202828590 U CN 2009202828590U CN 200920282859 U CN200920282859 U CN 200920282859U CN 201651465 U CN201651465 U CN 201651465U
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- CN
- China
- Prior art keywords
- valve
- pressure
- safety valve
- bonnet
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Abstract
The utility model discloses a reset safety valve, which comprises a valve body having an outlet and an inlet; the inlet and the outlet of the valve body are respectively provided with a joint; a piston used for communicating or relating with the inlet and the outlet is disposed inside the valve body; a bonnet is connected on the upper end of the valve body; a connecting rod and a reset handle with balancing function are disposed in the bonnet; the lower end of the connecting rod is connected with the piston; the upper end of the connecting rod is connected with the short arm of the reset handle; the lower end of the long arm of the reset handle is provided with a compression spring; both ends of the compression spring are respectively provided with an adjustment bolt for adjusting the spring distortion amount. The safety valve of the utility model can set the operating pressure of system by adjusting the presetting pressure, achieves an obviously higher precision compared with the shearing pin type safety valve. Shearing pin type safety valves are easily influenced by the material and diameter variation of the shearing pin, can hardly guarantee the accuracy of the set pressure value; while the spring type safety valve solves such problem.
Description
Technical field
The utility model relates to a kind of pilot pressure on any fluid and the gas line that is used for, and the valve of protection pipeline specifically is a kind of safety valve that resets.
Background technique
Existing safety valve is for cutting off safety valve, fluid enters through the joint that is connected on the valve body, withstand piston assembly, piston rises when the pressure overrate of fluid, the impulse force when the cushion pad damper piston rises, and jack-up cuts off plate forces shear pin to fracture, safety enclosure fixedly prevents the shear pin ejection that fractures by snap, fluid is discharged from valve outlet by joint, makes it pressure release.The pressure release back piston can't reset, even reset simultaneously, also needs to change shear pin.Change relieving pressure by moving the position that cuts off.When regulating pressure side, need safety pin to be inserted in the corresponding hole by giving pressure.The cylinder sleeve dimension modifying then must correspondingly be set up safety valve pressure.This device safety coefficient is not high enough, and when the pin insufficient strength, pin can eject and hurt sb.'s feelings.If use iron wire, welding rod or other material,, may cause the generation of accident if such work will influence the force value of safety valve.Though safety enclosure plays the ejection that the protection shear pin fractures, risk factor still exists.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned the deficiencies in the prior art, and a kind of safety valve that resets of accurately pressure regulation is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of safety valve that resets, comprise valve body with export and import, import and outlet at described valve body are respectively arranged with joint, in described valve body, be provided with the piston that is used to be communicated with or concern described import and outlet, connect a bonnet in the upper end of valve body, in described bonnet, be provided with the reseting handle that connecting rod and has equilibrium function, the lower end of described connecting rod is connected with piston, the upper end of connecting rod is connected with the galianconism of described reseting handle, long-armed lower end at reseting handle is provided with pressure spring, also is provided with the adjusting bolt of a Regulation spring amount of deformation at the two ends of described pressure spring.
Also be provided with the crank that resets in described bonnet, this crank that resets is connected with a reseting handle.
In described bonnet, also be provided with a pressure release key.
Also be provided with a valve gap on described bonnet, this valve gap is provided with the pressure display unit of a demonstration pressure spring pressure.
This New-type safety valve has adopted two helical compression load springs, and this spring is used to guarantee that constant masterpiece is used for crank.When fluid process joint, make moment that piston, connecting rod act on crank greater than the spring action of helical compression load when the moment of crank, move on the piston, fluid is then discharged from valve outlet by piston lower end breach, this moment, valve was in the pressure release state of opening, and the pressure release key is near bonnet; Otherwise valve closing then, the pressure release key is away from bonnet.
When New-type safety valve is in closed condition, can make the pressure release key near bonnet, the pressure release of safety valve manual unlocking by promoting the pressure release key; When making it to close, only need to use reseting handle, make valve closing by the crank that resets, the pressure release key is away from bonnet this moment.
The size of safety pressure value is set, only needs to regulate the nut on the bolt, change the decrement of spring, by setting pressure display device Control work pressure size.
In fact, it is crank that valve has adopted equalizer bar, and by this beam, piston action is in the short moment of crank, and load spring action simultaneously is in the long moment of crank, when promptly piston force is greater than spring force, and valve open.Piston force is during less than spring force, valve closing.
Yellow area and cyan zone are filling region, and two Room communicate, and reach hydro-cushion, play damper piston to the valve body impact force action, also are easy to during piston reset.
Compared with prior art, the beneficial effects of the utility model are:
1, the model utility safety valve working pressure of coming initialization system by the predetermined pressure of adjusting is compared with shear pin formula safety valve, and precision obviously improves.Shear pin formula safety valve is subjected to the influence of shear pin material and vary in diameter easily, and the force value of setting is difficult to guarantee that accurately then there is not the problem of this respect in Direct spring loaded safety valve.
2, the utility model safety valve automatically resets or by operation control reseting handle, valve reset can not needed to change safety pin, compares with shearing safety valve, and efficient is higher.
3, the accuracy of the utility model safety valve is not subjected to the influence of continuous pressure fluctuation or vibrations.In case correct calibration, even flick through valve repeatedly, the precision of valve also can keep.
4, the utility model safety valve is controlled easily, no matter in the system whether pressure is arranged, can be at any time by control pressure release key 11 release pressures, but shear pin formula safety valve release pressure like this.
5, the utility model safety valve can change the setting value of system pressure by adjusting nut.And valve can be with pressure to adjust (for safety, only limiting to increase setting value usually).And the adjustment of shear pin formula safety valve must quit work in system and not have under the situation of pressure, and the position of changing shear pin could change the setting value of system pressure.
6, the connecting rod of the utility model safety valve is a full enclosed type, protects each connected element can not be corroded, even valve
Break down and also do not have parts and fly out and damage in inside.
7, the utility model safety valve has 3 inches-1502 unions to be connected dual mode with flange, can connect according to client's demand, and the connecting thread of these two kinds of Placements does not contact high-pressure liquid, meets the API standard.
Description of drawings:
Fig. 1 is a structure sectional view of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated, as shown in Figure 1, joint 1 is connected with valve body 2; Piston 3 connects by connecting rod 13 and is connected with crank 12; Crank 12 is installed in bonnet 4 the insides; Valve gap 5 covers on bonnet 4; Reseting handle 6 is connected on the bonnet 4 by the crank 7 that resets; Load pressure spring 9 is by upper spring back-up ring 16, lower spring back-up ring 17 and load screw, and the load screw is fixing by bonnet 4; On bonnet setting pressure display device 8, and regulate the amount of deformation of pressure springs 9 by regulating bolt 10; Pressure release key 11 is installed in the bonnet 4, and manual pressure release effect is played in control link 13 positions.Last filling region 14 is the shoulder regions of piston 3, and following filling region 15 is piston 3 inner regions, and two Room communicate, and plays buffer function.
Claims (4)
1. safety valve that resets, comprise valve body with export and import, import and outlet at described valve body are respectively arranged with joint, it is characterized in that: in described valve body, be provided with the piston that is used to be communicated with or concern described import and outlet, connect a bonnet in the upper end of valve body, in described bonnet, be provided with the reseting handle that connecting rod and has equilibrium function, the lower end of described connecting rod is connected with piston, the upper end of connecting rod is connected with the galianconism of described reseting handle, long-armed lower end at reseting handle is provided with pressure spring, also is provided with the adjusting bolt of a Regulation spring amount of deformation at the two ends of described pressure spring.
2. according to claims 1 described safety valve that resets, it is characterized in that: also be provided with the crank that resets in described bonnet, this crank that resets is connected with a reseting handle.
3. according to claims 1 or the 2 described safety valves that reset, it is characterized in that: in described bonnet, also be provided with a pressure release key.
4. according to claims 3 described safety valves that reset, it is characterized in that: also be provided with a valve gap on described bonnet, this valve gap is provided with the pressure display unit of a demonstration pressure spring pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202828590U CN201651465U (en) | 2009-12-24 | 2009-12-24 | Reset safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202828590U CN201651465U (en) | 2009-12-24 | 2009-12-24 | Reset safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201651465U true CN201651465U (en) | 2010-11-24 |
Family
ID=43116703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202828590U Ceased CN201651465U (en) | 2009-12-24 | 2009-12-24 | Reset safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201651465U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588636A (en) * | 2012-03-17 | 2012-07-18 | 鞍钢集团矿业公司 | Heat load regulating device for boiler safety valve and regulating method thereof |
| CN108825831A (en) * | 2018-07-25 | 2018-11-16 | 温州职业技术学院 | A kind of intelligent safety valve and its application method |
| CN108825832A (en) * | 2018-07-25 | 2018-11-16 | 温州职业技术学院 | Intelligent safety valve and application method |
-
2009
- 2009-12-24 CN CN2009202828590U patent/CN201651465U/en not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588636A (en) * | 2012-03-17 | 2012-07-18 | 鞍钢集团矿业公司 | Heat load regulating device for boiler safety valve and regulating method thereof |
| CN102588636B (en) * | 2012-03-17 | 2013-07-10 | 鞍钢集团矿业公司 | Heat load regulating device for boiler safety valve and regulating method thereof |
| CN108825831A (en) * | 2018-07-25 | 2018-11-16 | 温州职业技术学院 | A kind of intelligent safety valve and its application method |
| CN108825832A (en) * | 2018-07-25 | 2018-11-16 | 温州职业技术学院 | Intelligent safety valve and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Xinming Inventor after: Xiao Hongchun Inventor before: Xiao Hongchun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: XIAO HONGCHUN TO: LI XINMING XIAO HONGCHUN |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180802 Address after: 225300 west side of Dai Wang Road, Taixing hi tech Industrial Development Zone, Taizhou, Jiangsu Patentee after: Jiangsu Beck Petroleum Machinery Technology Co., Ltd. Address before: 225400 Room 305, building 9, Xicheng apartment, Taixing Town, Taixing, Jiangsu. Patentee before: Xiao Hongchun |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20210203 Decision number of declaring invalidation: 47992 Granted publication date: 20101124 |
|
| IW01 | Full invalidation of patent right |